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authorPeter Zijlstra <peterz@infradead.org>2020-11-26 13:16:55 +0100
committerPeter Zijlstra <peterz@infradead.org>2020-11-26 13:16:55 +0100
commit20c7775aecea04d8ca322039969d49dcf568e0e9 (patch)
tree138c057839197c9021043353e994815c0250e669 /Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration
parentperf/x86/intel: Add event constraint for CYCLE_ACTIVITY.STALLS_MEM_ANY (diff)
parentMerge tag 'media/v5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media (diff)
downloadlinux-dev-20c7775aecea04d8ca322039969d49dcf568e0e9.tar.xz
linux-dev-20c7775aecea04d8ca322039969d49dcf568e0e9.zip
Merge remote-tracking branch 'origin/master' into perf/core
Further perf/core patches will depend on: d3f7b1bb2040 ("mm/gup: fix gup_fast with dynamic page table folding") which is already in Linus' tree.
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration')
-rw-r--r--Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration b/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration
index ec950c93e5c6..ee8ed6494a01 100644
--- a/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration
+++ b/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration
@@ -7,6 +7,7 @@ Description: Attribute for calibrating ST-Ericsson AB8500 Real Time Clock
calibrate the AB8500.s 32KHz Real Time Clock.
Every 60 seconds the AB8500 will correct the RTC's value
by adding to it the value of this attribute.
+
The range of the attribute is -127 to +127 in units of
30.5 micro-seconds (half-parts-per-million of the 32KHz clock)
Users: The /vendor/st-ericsson/base_utilities/core/rtc_calibration